(VFOBS5) 1.75mL Semi-Micro Cuvette, PTFE Lid, Bonded, Width 5mm, 4 Windows

Weight	100 g
Brand	Qvarz
Resistant to Chemicals	No

SKU: VFOBS5

(VFOBS5) 1.75mL Semi-Micro Cuvette, PTFE Lid, Bonded, Width 5mm, 4 Windows

(VFOBS5) 1.75mL Semi-Micro Cuvette, PTFE Lid, Bonded, Width 5mm, 4 Windows - Image 2

(VFOBS5) 1.75mL Semi-Micro Cuvette, PTFE Lid, Bonded, Width 5mm, 4 Windows - Image 3

(VFOBS5) 1.75mL Semi-Micro Cuvette, PTFE Lid, Bonded, Width 5mm, 4 Windows - Image 4

~~$77.00~~ Original price was: $77.00.$69.00Current price is: $69.00.

In Stock

This semi micro volume cuvette is for fluorescence applications, with a path length of 10 mm. For Aqueous Samples Only. Use up to 100°C. The price is for 1 piece.

In Stock

Type: Bonded, For Aqueous Samples Only

SKU: VFOBS5 Categories: Semi Micro Cuvettes, All Cuvettes & Cells, Bonded Cuvettes, Cuvettes & Flow Cells, Fluorometer Cuvettes, Micro Cuvettes <3.5mL, Narrow Width Cuvettes, Open Top Cuvettes, Products Tags: fluorescence cuvette, narrow width cuvette, open top cuvette

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Description

VFOBS5 – 1.7 mL Semi-Micro Quartz Cuvette (Bonded, 5 mm Width, 4 Windows, PTFE Lid)

The VFOBS5 is a high-sensitivity bonded quartz cuvette designed for fluorescence spectroscopy and related optical measurements.
Featuring a 5 mm internal width and a 10 mm optical path length, it provides enhanced fluorescence signal strength, making it ideal for dilute samples or high-precision assays.
With 4 optically polished windows, the cuvette supports dual-path fluorescence detection with excellent optical clarity and stability.

Key Features

Sample volume: 1.7 mL — suitable for semi-micro fluorescence and absorbance applications.
10 mm optical path length: compatible with most standard fluorometers and spectrophotometers.
5 mm internal width: provides higher signal intensity for low concentration measurements.
4 optical windows: optimized for excitation and emission detection from multiple angles.
Bonded fabrication: fast, cost-efficient, and precise with ±0.06–0.08 mm path length tolerance.
Wavelength range: UV/VIS (190 – 2500 nm).

Typical Applications

Fluorescence spectroscopy (right-angle & front-face)
Protein and enzyme fluorescence analysis
Pharmaceutical and biochemical assays
Low concentration or high-sensitivity fluorescent dye studies

Cuvette Specifications

Type	Semi Micro Cuvette	Optical Path Length	10 mm
Article No.	VFOBS5	Volume	1700 µL
Measuring Method	Fluorescence Cells	Base Type	Flat
Number of Windows	4	Wavelength Range	UV/VIS (190 – 2500 nm)
Outside Dimensions
Height	45 mm	Width	12.5 mm
Depth	12.5 mm
Inside Dimensions
Width	5 mm	Depth (Inside)	10 mm
Center Height (Z)	8.5 – 20 mm	Fabrication Method	Bonded*
Package	Cell & PTFE Lid

About Bonded Fabrication

Bonded quartz cuvettes are constructed from precision-polished quartz plates. This method:

Enables fast production with lower costs compared to molded or fused types.
Maintains excellent optical tolerance of ±0.06–0.08 mm.
Best suited for aqueous samples and general fluorescence or absorbance experiments.

Usage Notes

Ideal for fluorescence measurements requiring dual detection paths.
Not recommended for long-term exposure to strong organic solvents.
5 mm channel width provides higher signal sensitivity compared to narrower cuvettes.

Note: Bonded cuvettes are cost-effective and precise for routine fluorescence assays. For higher chemical resistance, consider fused or molded quartz cuvettes.

Comparison of Fabrication Types

1	2	3	4
	*Molded	*Fused	*Bonded / Glued
UV vis ( 190- 2500 nm)	Yes	Yes	Yes
Transmission Matched	On Request	No	No
Transmission > 80%	Yes	Yes	Yes
Resistant to Acids and Bases (except hydrofluoric acid)	Yes	Yes	No
Resistant to Organic Solvents	Yes	Yes	No
Usable upto 600°C (1112°F)	Yes	Yes	Yes
Usable upto 1200°C (2192°F)	Yes	No	No
0 Variations Reading	On Request	No	No
Fabrication	Molded	Assembled with Quartz Powder	Assembled with Glue
Adhesives	No	No	Yes
Storage	Short Term Storage	Clean After Use	Clean After Use
Available Material	Fused Quartz Material
Note	Molded and fused cuvettes and cells are assembled by direct fusion without the use of adhesives throughout the production process. This guarantees resistance against corrosive chemicals and high temperature. Each quartz cuvette and cell has excellent transmission from 190nm to 2500nm.

1
QVARZ Cuvettes Transmission Characteristics The following table is our cuvettes and cells made of quartz material suitable for wavelength from 190nm to 2500nm and depicts the percentage transmission for the material. IR or Glass material is not included.

Why QVARZ Cuvettes and Cells? QVARZ is world-renowned as the producer of premium quartz cuvettes. Over fifteen years of experience manufacturing quartz cuvettes ensures that every QVARZ cuvettes are manufactured to the most exacting standards for reproducible results.
Spectrophotometry cuvettes - Most spectrophotometry applications in the visible and UV ranges benefit from QVARZ spectrophotometry cuvettes. Our cuvettes made of fused quartz material deliver precise and reliable readings even at wavelengths as low as 190 nm. QVARZ cuvettes are compatible with most spectrophotometers and photometers with standard 0.2 - 100 mm path lengths. Fluorometry cuvettes - QVARZ brings two decades of experience molding high-quality spectrophotometry cuvettes to new four-sided clear cuvettes for fluorometry. Available in standard quartz material with ultra-low auto-fluorescence for the highest precision measurements. Protective packaging - QVARZ cuvettes are encased in dust-free, low scratching expanded polystyrene packaging. This ensures that premium cuvettes arrive in the laboratory ina the same pristine condition they were in at the factory, with optical quality windows and free of contaminants. Volumes for most purposes - Our cuvettes are available in a variety of ranges from macro to macro semi-micro sizes to respond to the needs of most scientific applications. We are also able to customize sample volume to deliver consistent, accurate findings. Perform consistently - QVARZ Cuvettes are constructed from high-quality fused quartz materials and are grouped by manufacturing mold cavities to ensure the lowest fluctuation in extinction coefficient. Customization - Custom cuvettes and cells are encouraged and available upon request; mechanical drawings with specifications and tolerances are prerequisites. Awesome pricing and flexibility on small quantities.
To the best of our knowledge, the technical information provided here is accurate. However, Qvarz.com assumes no liability for the accuracy of this information. The values provided here are typical at the time of manufacture and may vary over time and from batch to batch.